Improvement



H. A. GATLEY.4 Bench-Planes.

nv ATTUIINEYSV wnnsssss.

. plane-irons.

UNITED STATES HENRY A. GATLEY, OF SOUTH BOSTON, MASSACHUSETTS.

IMPROVEMENT IN BENCH-PLANES.

Specification forming part of Letters Patent No. 146,588, dated January 20,1874; application filed December 2o, 1873.

To all whom t may concern:

Be it known that I, HENRY ALLEN GATLEY, of South Boston, in the county of Suolk and State of Massachusetts, have invented a new and useful Improvement in Bench-Planes, of which the following is a specification;

Figure 1 is a vertical longitudinal section of a plane to which my improvement has been applied. Fig. 2 is a detail section of the same, taken through the line x zc, Fig. l1. Fig. 3 is a detail view of the plate, swiveled screw, and movable nut. Fig. 4 is a detail view of the Fig. 5 is a detail view of the lockingplate.

Similar letters of reference indicate corresponding parts.

My invention has for its object tO furnish an improved attachment for jack and other hand planes, which will enable the plane-irons to be easily, accurately, and quickly attached, detached, and adjusted without hammering, and without any danger of springing the plane and making it untrue, and which shall be simple in construction and convenient in use. The invention consists in the plate, the swiveled screw, and its movable nut, in combination with the plane-irons, and the lockingplate and its screws for securing the said planeirons adjustably to a plane-stock, as hereinafter fully described. t

A represents the plane-stock, which may be made of wood or iron, and about the construction of which there is nothing new. B are the plane-irons, which are constructed and secured to each other in the ordinary manner. G is a plate, which is let into the stock A at the upper part of the inclined seat for the planeirons B, so that its upper surface may be flush with the surface of the said seat, and whichis secured to said stock by four screws. To the upper part of the lower side of the plate C are secured two'lugs, C', to which is swiveled a hand-screw, D, the hand-piece of which projects above the stock A, so that it can be con-` veniently operated. Upon the screw D, between the lugs C', is placed a nut, E, which is made with a toe upon its upper edge, which projects through a slot in the plate C, and en ters a hole in the plane-irons B, so that the said plane-irons may be adjusted by turning the screw D. F is the lockingplate, which is placed upon the upper side of the plane-irons B, and has a hole formed in its lower part to receive a screw, Gr, which passes through a hole in the plane-irons B, andis screwed into a screw-hole in the plate C. The lower part of the hole through the plate F is made large to allow the head of the screw'G to pass through, and its upper part is made narrow to f f iit upon the body of the said screw Gr, as shown in Fig. 5. H is a hand-screw, which passes through a screw-hole in the plate F, and the forward end of which rests` against ,the plane-irons B, so that, by turning the handscrew H forward, the plate F acts as a lever to lock the plane-irons B securely in place.

Having thus described my invention I as new, and desire to secure by Lett, ent- The plate and lugs C c c', swiveled s and movable nut E, in combination.with plane-irons B, screws G H, for securing the said plane-irons adjustably to a plane-stock, substantially as herein shown, and described. i

HENRY ALLEN GATLEY.

- Witnesses:

J OEN T. DODGE, JOHN MODONALD,

t 6 13 and locking-plate F audits 

